PolyMap：一款64通道复音吉他拾音系统
PolyMap: A 64-Channel Polyphonic Guitar Pickup System
中文总结 AI 辅助
苏黎世联邦理工学院硕士论文提出PolyMap系统，通过64个拾音器实现琴弦多位置单独感知，为电吉他提供高分辨率感知与丰富后处理能力，系首款具备完整功能集的复音吉他拾音系统。
中文摘要 AI 辅助
在电吉他中，琴弦的振动通常由线圈与磁铁组合构成的拾音器（pickups）感知。拾音器及其沿琴弦的位置对乐器的音色有重要影响。大多数吉他配备1至3个拾音器，每个拾音器横跨所有琴弦，位置固定，仅生成单声道输出。本苏黎世联邦理工学院硕士论文介绍了一款名为PolyMap的新型拾音系统，该系统可单独感知每根琴弦并在多个位置进行感知。该系统在定制的八弦吉他上得到验证，每根琴弦配备8个拾音器，总计64个拾音器。来自这64个拾音器的信号在吉他内部被单独数字化，并通过多通道音频数字接口（MADI，一种低延迟数字音频接口）传输至计算机进行进一步处理。PolyMap可实现电吉他琴弦的高分辨率感知，并为音乐家、音频工程师和研究人员提供广泛的后处理能力。据我们所知，这是首个具备如此完整功能集的复音吉他拾音系统。
英文摘要
In electric guitars, the vibrations of the strings are typically sensed by coils of wire combined with a magnet, called pickups. The pickups and their position along the strings contribute strongly to the instrument's sound. Most guitars feature one to three pickups, each spanning across all strings with fixed positions and generating a single mono output. The work of this Master's Thesis at ETH Zürich introduces a new pickup system called PolyMap, which senses each string individually and at multiple locations. The system is demonstrated with a custom-made eight-string guitar that contains eight pickups per string for a total of 64 pickups. The signals from these 64 pickups are individually digitized inside the guitar and transmitted over a multichannel audio digital interface (MADI), a low-latency digital audio interface, to a computer for further processing. PolyMap enables high-resolution sensing of an electric guitar's strings and enables extensive post-processing capabilities for musicians, audio engineers, and researchers. To the best of our knowledge, this is the first polyphonic guitar pickup system with such a complete feature set.
